Siphon-head.



I P. SPITZENBERG.

SIPHON HEAD.

APPLICATION FILED FEB.Z6, 1910.

Patented Sept. 3, 1912.

Inventor:

/ Atty.

PHILIP SPITZENBERG, OF NEW YORK, N. Y.

SIPI-ION-I-IEAD.

Specification of Letters Patent.

Patented Sept. 3,1912.

Application filed February 26, 1910. Serial No. 546,075.

To (ZZZ whom it may concern:

Be it known that I, PHILIP Srrrznnnnno, a citizen of the United States, residing at the borough of Brooklyn, in the city of New York, county of Kings, and State of New York, have invented certain new and useful Improvements in Siphon-Heads, of which the following is a specification, reference being had therein to the accompanying drawings, which form a part thereof.

My invention relates to siphon heads and more particularly to the valve mechanism and the detailed construction of the siphon head.

In siphon heads as now generally used, there is employed a valve stem, having mounted on the lower end thereof by means of screw threads, a metallic valve block carrying a rubber washer, it being necessary in assembling the device or adjusting or readjusting the said valve block to its seat to remove the head from the bottle. With this type of valve the high pressures within the bottle, and the action of the water or other contents upon the rubber tend to cause the rubber to shrink, and thus form a vent resulting in leakage. This condition may also be brought about by a loss in the resiliency of the spring within the head. Under either condition to efi'ect a readjustment of the valve block to prevent such leakage, it is necessary to remove the head and adjust the valve block upon the valve stem in a manner to secure the desired intimate contact with the valve seat.

The main object of my invention is to provide a siphon head wherein the valve block will automatically adjust itself relative to its stem and to the valve seat, thus causing the setting of the valve to be automatic, and avoiding the necessity for the removal of the head from the bottle to accomplish readjustment in case of wear.

A further object is to provide a head of this character wherein the valve block will be capable only of direct reciprocation to ward and from its seat, thus causing the packing of the valve block and the valve seat to engage at substantially the same place at all times and avoid leakage which might occur through a shifting of the block after slight wear has occurred.

A still further object is to provide a siphon head of this character wherein the valve block will be held in alinement with the valve seatby its stem, and will be forced away from said seat to open the valve, by said stem, although not under the control of said stem or of the spring acting thereon, when the valve is to be closed.

A still further object is to provide a phon head wherein the valve stem its packing and the spring acting to restore same to normal may be removed and replaced without removing the head from the bottle or if desired, withoutdischarging the bottle.

A still further object is to provide a siphon head wherein the lever handle may be secured in the proper relation to the valve stem without employing a pivot pin pass ing through the shell of the head and said ever.

A still further object is to provide a Siphon head wherein the lever handle may be attached to the stem in a manner to prevent its accidental displacement and yet permit its removal in removing the stem for purposes of repair. And a still further object is to provide a siphon head which may be economically produced, which will be durable and which will be capable of being quickly repaired.

The invention consists in the novel features of construction and combination of parts as are hereinafter set forth and described and more particularly pointed out in the claims hereto appended.

In the accompanying drawing, I have shown a cross section of a siphon head embodying my invention, said view being on a greatly enlarged scale in order to more clearly illustrate the invention.

In the embodiment of my invention shown in the accompanying drawing, I have shown at a the outer shell of a siphon head, having a spoutb, said head being adapted to be attached to a bottle in the customary manner by means of a split ring 0. At (Z I have shown a siphon tube of the usual and well known construction emo bodying therein an enlarged, flanged metallic head 6. This tube differs from the ordinary tube merely in the respect that the spring seat 6 is formed adjacent to the head of the glass tube cl. VYithin the shell a is a partition having formed thereon an annular narrow valve seat f, the said partition having a vertical opening therethrough communicating with the opening" in the spout Z) and opening into a spring chamber a formed in the top of the said shell (1. The chamber a has an open top through lllO which the valve stem is inserted in the chamber. The construction heretofore described is that of the siphon head now extensively used, except as to the formation of the spring seat 6, and no claim of invention is made thereto broadly. It is also apparent that these features may be varied, the showin being merely for the purpose of illustratmg the application of myinvention to one type of siphon head.

Seated within the enlarged head 6 of the siphon tube is a valve block it having a ver tical bore therein, the upper portion of this valve block being enlarged and fitted with a rubber packing ring A adapted to engage the annular valve seat f. The valve block it is normally pressed into engagement with the seat f by the spring 2' which is preferably made of brass, suitably plated with a non-corrosive metal as tin. The lower portion of the valve block h is reduced in diameter, and is inclosed by the spring 2", the said spring acting between the spring seat 6 and the shoulder on said valve block about said reduced portion. Passing axially through the spring chamber a is a valve stem j which is of a diameter adapted to enter and move freely in the bore of the valve block it. The said valve stem is provided with an integral enlarged head 9" having a sliding fit in the upper portion of the chamber a. This head has a slot j" extending therethrough, and at the bottom of said slot and extending across same, is a fulcrum bar j adapted to be engaged by the lever handle. The top of the enlarged head j is provided with a horizontal tlange 5/ adapted to engage the top of the siphon head and limit the amount of depression of the valve stem j. The wall of the chamber a is provided with a slotted recess, as a for the end of the lever handle 7; and diametrically opposite this wall, and in alinement with the slot j is an elongated slot a forming a way to permit the necessary movement of the said lever handle. The lever handle L is of a thickness to have free movement in the slot 7', and adjacent to the inner end thereof it is provided with a recess or notch adapted to pass over and engage the fulcrum bar j which arrangement insures the proper pivotal movement of said lever handle without the necessity for employing a fixed pivot passing through the inner end of said handle. This construction also permits the lever handle to be removed at will. A suitable washer and face plate therefor, indicated at Z, encircles the valve stem j and seals the bottom of the chamber a, and seated between said wear plate and the bottom of the enlarged head j of the valve stem, is a spring m for normally forcing the valve stem j and lever handle is upwardly.

In filling a siphon bottle, mechanical means are employed for opening the valve and holding it open, and to prevent such means disengaging the lever handle Z1 from the stem j, it is reasonably essential to provide movable means whereby the space above the fulcrum bar j may be increased to permit the passage of the lever handle it or diminished to an extent to prevent the removal. of said lever handle, except after the withdrawal of the said movable means. This movable means preferably consists of a pivot screw n mounted in the top of the head j and acting upon the lever handle L at a point opposite its point of engagement with. the fulcrum bar The operation of the herein described siphon head is substantially as follows: In assembling the device, the siphon tube (Z is first inserted in the neck of the bottle, the flange of the head 6 thereof resting upon the rubber gasket 0 which in turn rests upon the neck of the bottle 7). The spring 2' is then dropped upon the seat 6 in the head 6 and the valve block 70 mounted with the reduced portion thereof within the coils of said spring in the manner shown in the drawing. The head shell a is then mounted upon the neck of the bottle by means of the split ring 0 in the usual and well known manner. The valve stem mechanism and the controlling lever therefor may be assembled prior to this or subsequently, as desired, and if prior, the valve block it would first be mounted upon the valve stem If the valve stem mechanism be assembled subsequently to the application of the head shell to the bottle, the spring m and gasket and wear plate Z would be mounted upon the stem j and the said stem inserted in the vertical opening through the partition in the head plate and inserted in the bore in the block it and packing 72. thereof. The stem is then forced downwardly by its enlarged head until the slot 7' is alined with the slots (1 a and the inner end of the lever handle is is seated in the recess or slot c after being passed through the slot j" and way at, this positioning of the lever handle l: bringing the notch or recess 70' therein astride of the fulcrum bar j of the said stem. The said screw it is then advanced into such relation to the lever handle 70 as to confine it between the said screw and the fulcrum bar j thus holding the notch 70 in said lever handle in such engagement with the fulcrum bar as to prevent the withdrawal or removal of said handle while the screw is in this position. The parts being assembled, in the manner de scribed, it will be observed that the valve stem 7' enters the bore of the valve block It to a limited extent only, leaving clearance thereunder, which permits the spring i to be the sole agency for closing the valve. The valve stem, however, in conjunction with the reduced head of the block it keeps the valve stem and valve block in alinement thus causing the engagement of the valve packing h with the valve seat f to form a perfect joint, which joint will be improved by the continued use of the valve, or in other words, these parts through the continued engagement of the same parts thereof with each other will wear the valve block packing to a perfect seat. This is desirable as a lateral shifting of the block might result in the Worn surface of the packing forming a duct through which the contents of the bottle might leak.

hen it is desired to draw water from the bottle, the lever handle is forced clownwardly in the usual manner, the first movement of the stem j therefore being independently of the valve block, the engagement of the bottom of said stem with the bore of said block causing the necessary movement of the block through the subsequent movement of the said valve stem. This movement of the lever handle is against the tension of the spring on and the enlarged spindle head of the valve stem has movement with said stem and said handle, the flange g limiting the extent of depression of the said handle and head.

lVhen it is desired to close the valve it is therefore merely necessary to release the handle 7c the upper movement of the valve stem j and the block it being coincident with the moment of engagement of the block with the valve seat f, the said stem acting under the influence of its spring at and the Valve block under the influence of its spring 2', the slight friction between said stem and said block aiding in this restoration of parts. After the valve block has been reseated, how ever, the stem j will have still further movement, thus causing the spring 2' and the pressure within the bottle to maintain the joint and eliminate all possibility of leakage through any slight inaccuracies in the valve stem or a loss of adjustment of the valve block relative thereto through wear upon the valve block packing it.

If it be desired to replace the valve stem 1' or its packing Z because of wear, or the spring m because of a loss of temper, it is merely necessary to withdraw the screw 42 engaging the space above the fulcrum bar j thus permitting the withdrawal of the lever handle is. The slight movement of the stem j and its enlarged head necessary to permit the withdrawal of the lever handle 71: over the fulcrum bar y, would not be suflicient to disturb the valve block it, thus permitting the removal of the said lever handle while the bottle is filled, if desired. The lever handle being removed, the valve stem j and its enlarged head, the spring m, and the packing Z may readily be removed from the chamber a and a new one, or new parts substituted therefor. This facility in replacing the valve stem and its appurtenances is of considerable importance, as the valve block it will outwear several packings Z and many bottlers prefer not to remove the head unless absolutely necessary, because of the difficulty of again securing it in place, and the breakage or loss due to the stripping of the interior screw threads of the head shell, or the threads of the split ring 0.

It is not my intention to limit the invention to the precise details of construction, or to the type of siphon head shown in the accompanying drawing, it being apparent that such details may be varied, or the invention may be applied to a different type of head without departing from the spirit and scope of the invention.

Having described the invention, what I claim as new, and desire to have protected bv Letters Patent, is

1. A siphon head embodying therein a head cast-ing having a valve seat chamber,

and a spring chamber above same, said spring chamber being open at the top and having a recess in the inner wall thereof and a diametrically opposite slot, a reciprocatory spring controlled valve stem having movement in said spring chamber, an enlarged head for said stem having a sliding fit in,

and adapted to close, said spring chamber,-

said head having a slot extending diametrically therethrough and a fulcrum bar extending across the bottom of said slot, a lever handle adapted to project through the slot in the wall of said spring chamber and through the slot in said valve stem head, the end of said lever being adapted to seat in said recess and an intermediate point thereof being notched so as to be adapted to bear upon said fulcrum bar, and means carried by said head above the said fulcrum bar, and adapted to engage said lever handle, whereby said lever handle is held in engagement with said fulcrum bar.

2. A siphon head embodying therein a head casting having a valve seat chamber, and a spring chamber above same, said spring chamber being open at the top and having a recess in the inner wall thereof and a diametrically opposite slot, a reciprocatory spring cont-rolled valve stem having movement in said spring chamber, an enlarged head for said stem having a sliding fit in, and adapted to close, said spring chamber, said head having a slot extending diametrically therethrough and a fulcrum bar extending across the bottom of said slot, means forming a part of said head whereby the downward movement of said valve stem is limited, a lever handle adapted to project through the slot in the wall of said spring chamber and through the slot in said valve stem head, the end of said lever being adapted to seat in said recess and an intermediate point thereot' being notched so as to be adapted to bear upon said fulcrum bar, and means carried by said head above the said fulcrum bar, and adapted to engage said lever handle, whereby said lever handle is held in engagement with said fulcrum bar.

3. A siphon head embodying therein a head casting having a valve seat chamber, and a spring chamber above 1e, said spring chamber being; open at the top and having a recess in the inner Wall thereof and a diametrically ouposite slot, a reciprocatory spring controlled valve stem having movement in said spring chamber, an enlarged head for said stein having a sliding fit in, and adapted to close, said spring chamber, said head having a slot extending diametrically therethrough and a fulcrum bar extending across the bottom of said slot, a lever handle adapted to project through the slot in the all of said spring chamber and through the slot in said valve stem head, the end of said lever being adapted to seat in said recess and an intermediate point thereof being notched so as to be adapted to bear upon said fulcrum bar, and a screw carried by said head above said fulcrum bar, and adapted to engage said lever handle, Wherebv said lever handle is held in engagement with said fulcrum bar.

In Witness whereof, I have hereunto affixed my signature, this 5th day of January, 1910, in the presence of two Witnesses.

PHILH SPITZENHERG.

v i itnesses E. W. KENNEDY, MARY BURNS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

